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/*
* Copyright (C) 2008 The Guava Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.common.collect.testing.features;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.testing.Helpers;
import java.util.Collections;
import java.util.Set;
/**
* Encapsulates the constraints that a class under test must satisfy in order
* for a tester method to be run against that class.
*
* <p>This class is GWT compatible.
*
* @author George van den Driessche
*/
@GwtCompatible
public final class TesterRequirements {
private final Set<Feature<?>> presentFeatures;
private final Set<Feature<?>> absentFeatures;
public TesterRequirements(
Set<Feature<?>> presentFeatures, Set<Feature<?>> absentFeatures) {
this.presentFeatures = Helpers.copyToSet(presentFeatures);
this.absentFeatures = Helpers.copyToSet(absentFeatures);
}
public TesterRequirements(TesterRequirements tr) {
this(tr.getPresentFeatures(), tr.getAbsentFeatures());
}
public TesterRequirements() {
this(Collections.<Feature<?>>emptySet(),
Collections.<Feature<?>>emptySet());
}
public final Set<Feature<?>> getPresentFeatures() {
return presentFeatures;
}
public final Set<Feature<?>> getAbsentFeatures() {
return absentFeatures;
}
@Override public boolean equals(Object object) {
if (object == this) {
return true;
}
if (object instanceof TesterRequirements) {
TesterRequirements that = (TesterRequirements) object;
return this.presentFeatures.equals(that.presentFeatures)
&& this.absentFeatures.equals(that.absentFeatures);
}
return false;
}
@Override public int hashCode() {
return presentFeatures.hashCode() * 31 + absentFeatures.hashCode();
}
@Override public String toString() {
return "{TesterRequirements: present="
+ presentFeatures + ", absent=" + absentFeatures + "}";
}
private static final long serialVersionUID = 0;
}
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